# source: Hydrogen Analysis Resource Center /
#        NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP): Version 8.0
#        http://www.nist.gov/srd/nist23.htm
# temperature in Kelvin, compressibility factor Z at 1 bar
# 273.15 1.0006
# 298.15 1.0006
# 323.15 1.0006
# we have to provide 2 values, slope and offset: (values at 273.15 K, 1 bar)
0.0006 1
